What's unusual about it is the magnification-- no idea how long a lens he used, but the whole thing only spans just over 20 degrees, so one computer-screen-width is comparable to the view thru a 600 mm lens on a 24 x 36 mm camera-- just over 3 degrees on my monitor. (If you want to check yours, the west face of the Citicorp tower in the foreground spans 3.4 horizontal degrees; the south face spans 1.4 degrees.)

Over near the left edge of the pic just short of the skyline are the http://tinyurl.com/bvfpj7 North Shore Towers just inside the NY city limits on the south side of the Grand Central Parkway, 22 km away. Then shift rightward to the top of the SE corner of the Citicorp tower. At 11:30 o'clock to that corner is a blue-banded tank http://tinyurl.com/dfpe8y just touching the skyline, 36 km away. Closer to us, 1:30 to the corner of Citicorp, is a silver tank http://tinyurl.com/czuqk2 in New Hyde Park.

(You guys all know you can switch from the Bird's Eye View to a vertical aerial and zoom out to get oriented?)

Much closer (11 km away) at 2:30 to the corner of Citicorp is the big "T" of the Port Authority building from the 1964 World's Fair http://tinyurl.com/cwqnd2 . Beyond the right leg of the "T", see that black arch sitting atop the skyline? That's the north arch of the Captree bridge http://tinyurl.com/awpcvu , 60 km away. Half a degree to the right of that, just below the skyline is a tank http://tinyurl.com/cekdxh in Hempstead, 31 km away; 2/3 of a degree farther right the white/red Copiague tank http://tinyurl.com/bfjjnl is barely visible atop the skyline.

1.4 degrees right of the blue sphere-on-a-column tank is another blue tank http://tinyurl.com/bulexx just below the skyline; 0.07 degree to the right and much closer is the yellow-brick-and-green-copper cupola of Newtown High School http://tinyurl.com/c7r2sw . A degree and a half to the right a tank http://tinyurl.com/cmf7qq just touches the skyline; I guess that's the Belmont Park grandstand in between, but never have checked on that.